/*
 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef HEADER_IDEA_H
#define HEADER_IDEA_H

#include <openssl/opensslconf.h>

#ifndef OPENSSL_NO_IDEA
#    ifdef __cplusplus
extern "C" {
#    endif

typedef unsigned int IDEA_INT;

#    define IDEA_ENCRYPT 1
#    define IDEA_DECRYPT 0

#    define IDEA_BLOCK 8
#    define IDEA_KEY_LENGTH 16

typedef struct idea_key_st {
    IDEA_INT data[9][6];
} IDEA_KEY_SCHEDULE;

const char *IDEA_options(void);
void IDEA_ecb_encrypt(const unsigned char *in, unsigned char *out, IDEA_KEY_SCHEDULE *ks);
void IDEA_set_encrypt_key(const unsigned char *key, IDEA_KEY_SCHEDULE *ks);
void IDEA_set_decrypt_key(IDEA_KEY_SCHEDULE *ek, IDEA_KEY_SCHEDULE *dk);
void IDEA_cbc_encrypt(const unsigned char *in,
                      unsigned char *out,
                      long length,
                      IDEA_KEY_SCHEDULE *ks,
                      unsigned char *iv,
                      int enc);
void IDEA_cfb64_encrypt(const unsigned char *in,
                        unsigned char *out,
                        long length,
                        IDEA_KEY_SCHEDULE *ks,
                        unsigned char *iv,
                        int *num,
                        int enc);
void IDEA_ofb64_encrypt(const unsigned char *in,
                        unsigned char *out,
                        long length,
                        IDEA_KEY_SCHEDULE *ks,
                        unsigned char *iv,
                        int *num);
void IDEA_encrypt(unsigned long *in, IDEA_KEY_SCHEDULE *ks);

#    if OPENSSL_API_COMPAT < 0x10100000L
#        define idea_options IDEA_options
#        define idea_ecb_encrypt IDEA_ecb_encrypt
#        define idea_set_encrypt_key IDEA_set_encrypt_key
#        define idea_set_decrypt_key IDEA_set_decrypt_key
#        define idea_cbc_encrypt IDEA_cbc_encrypt
#        define idea_cfb64_encrypt IDEA_cfb64_encrypt
#        define idea_ofb64_encrypt IDEA_ofb64_encrypt
#        define idea_encrypt IDEA_encrypt
#    endif

#    ifdef __cplusplus
}
#    endif
#endif

#endif
